Shift Shaft Bushing Kit – Fits MerCruiser Alpha One Gen II Sterndrive (Replaces 23-806036A1)

Shift Shaft Bushing Kit – Fits MerCruiser Alpha One Gen II Sterndrive (Replaces 23-806036A1)

This shift shaft bushing kit is designed for MerCruiser Alpha One Gen II sterndrive units manufactured from 1991 and later. It is compatible with sterndrives bearing serial numbers F094775 and up and supports engines up to 300 HP.

This kit serves as a direct replacement for MerCruiser part number 23-806036A1, Sierra 18-3760, GLM 87562, and Mallory 9-72162.

• Installation Method: Press-in bushings and seals
• Kit Contents: Includes two shift shaft bushings and two seals
• Housing Material: Brass/Bronze bushings and Polyurethane seals

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 2 x Shift Shaft Bushings (Replaces 23-814308)
• 2 x Shift Shaft Seals (Replaces 26-816464)

Installation Guide

1. Ensure the sterndrive is safely secured and disconnect the boat's battery.
2. Remove the upper shift shaft lever and any connected hardware to access the bushings.
3. Carefully extract the old, worn bushings and seals from the bell housing. Take care not to gouge or damage the housing bore.
4. Thoroughly clean the bore to remove any corrosion, salt deposits, or debris.
5. Apply a light coat of marine-grade grease to the outer surface of the new bushings.
6. Using a suitable bushing press tool or a socket of the correct diameter, press the new bushings into the housing until they are fully and evenly seated.
7. Install the new polyurethane seals, ensuring they are oriented correctly to prevent water intrusion.
8. Reinstall the shift shaft and lever, confirming proper alignment and engagement.
9. Test the shift mechanism for smooth, positive operation through all gears (Forward, Neutral, Reverse) before starting the engine.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my MerCruiser Alpha One Gen II?
A: Verify your sterndrive's serial number. This kit is specifically for MerCruiser Alpha One Gen II units with a serial number of F094775 and higher, which covers models from 1991 to present.

Q: What are the signs that my shift shaft bushings need replacement?
A: Common symptoms include excessive play or looseness in the shift shaft, difficulty shifting between gears, or water leaking into the drive bellows through the shift shaft area.

Q: Is a special tool required for installation?
A: Yes, since these are press-fit components, a proper bushing driver or press is highly recommended. This ensures the bushings are installed straight and without damage to the bushing or the bell housing.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.